Your best bet currently is to use Advanced Search (available on any paid plan), but you can save (Star) the search to make it appear in your left sidebar for easy re-use. See this great post by @Richard_Sather for details and also the whole thread its in:
Asana is evolving very quickly these days with many new features and A/B tests running. It’s not clear, but I would guess that Asana would want to make the ability to retrieve deleted items more discoverable in the future, as it was in the past, but that’s just conjecture.
PLEASE bring back a visible and easy-to-access deleted tasks feature! It is very difficult to see what was deleted with Advanced Search - I am missing two projects that were used regularly (as recent as last week) and even when typing in their names, nothing comes up in advanced search. I’m a superadmin on our account and still can’t see where these projects went.
This only seems to work with the paid version of Asana. The free version does not have a ‘show more’ button in the sidebar, nor is there a ‘more’ button when I click on the avatar. So if you don’t pay for Asana, I think that may be your issue.
Do you have Stockholm syndrome? If there was a feature of seeing deleted tasks for many years on the free plan, but now they removed it while keeping it on the paid plan, this is clearly Asana’s issue, not customers.
Sorry, by ‘issue’ I didn’t mean the person asking the question was causing the problem. Maybe a more clear word choice would have been ‘source’. I was just trying to indicate for them that if they are on the free plan, the option isn’t available to them.